Free to Download · iOS & Android

ENJOY THE SUN.
SKIP THE BURN.

Sunly tracks the UV around you in real time, reminds you exactly when to reapply sunscreen, and times your sessions for safe tanning or vitamin D.

Get the good of daylight without the damage.

Real-time UV

live for your location

3 modes

protection, tanning, vitamin D

Health sync

Apple Health & Health Connect

UV 8

Very High

Reapply SPF

in 1h 45m

Vitamin D

12 min to go

Synced to Health

Sunly home screen showing the live UV index and your safe window

Sunly tanning plan with the best tanning windows and a timed session

Sunly health screen tracking your daily vitamin D from sunlight

Sun Sessions

Sunly tanning session with a live countdown timer for the current round

Sunly safe exposure window counting down your protected time outdoors

Sunly vitamin D session timing the minutes you need in the sun

TAN ON A TIMER,
NOT A GUESS.

Sunly times every round, front and back, tuned to your skin type and the live UV. Color builds evenly and you always know when to flip or cover up.

ROUND-BY-ROUND

Timed sides

Front and back sessions timed for you

SKIN-AWARE

Your skin type

Rounds matched to how you burn and tan

Learn about safe tanning

STAY OUT LONGER,
STAY COVERED.

A guided safe-exposure window with automatic sunscreen reapply alerts, so you can enjoy a long day out without burning.

SAFE WINDOW

Timed exposure

Know exactly how long you're protected for

REAPPLY ALERTS

Right on schedule

Timed to your SPF and the real UV

See how reminders work

HIT YOUR DAILY
VITAMIN D.

Sunly works out the minutes you need at the current UV to reach your vitamin D goal, then reminds you when it's time to cover up.

MINUTES TO TARGET

Tuned to you

Based on your skin type and the live UV

COVER-UP CUE

Before you overdo it

A nudge the moment you've had enough

Explore vitamin D tracking

Health Sync

YOUR SUN DATA,
IN HEALTH.

Sunly writes your UV exposure and time in daylight to Apple Health and Health Connect, so your sun habits sit alongside the rest of your health, with a complete picture over time.

AUTO-LOG

UV & sessions

Your dose and time outdoors recorded per session

PRIVATE

Write-only

Sunly never reads your Health records

Sunly syncing UV exposure and sun sessions to Apple Health

More Features

EVERYTHING ELSE
UNDER THE SUN.

Real-Time UV & Forecast

Live UV index, today's safe window, and the full week ahead for your location.

Sun & Vitamin D Trends

See your time in the sun and vitamin D add up over days and weeks, all in one place.

Personalized to Your Skin

Your skin type tunes every safe window, reapply alert, and forecast so the numbers fit you.

All Your Places

Save home, work, and your next holiday spot. Check the UV anywhere before you pack.

Plans

START FREE.
GO PRO WHEN READY.

FREE

Sunly

No signup. No credit card.

Live UV index and today's safe window
Today's UV forecast
Sun sessions: protection, tanning, vitamin D
Your personal skin profile

PRO

Sunly Pro

Upgrade anytime inside the app

Everything in Free
Full 7-day UV forecast and safe windows
Smart sunscreen reapply alerts
Sun and vitamin D trends
Apple Health and Health Connect sync
Unlimited saved locations

FAQ

GOOD TO KNOW.

Is Sunly free?

Yes. The live UV index, today's forecast, sun sessions, and your skin profile are free to use. Sunly Pro unlocks the full 7-day forecast, smart sunscreen alerts, sun and vitamin D trends, Apple Health sync, and unlimited saved locations.

Can Sunly help me tan safely?

Yes. Tanning mode builds color gradually with structured rounds and timing for each side, matched to your skin type and the live UV index, so you get a tan without crossing into a burn.

How does the vitamin D feature work?

Vitamin D mode estimates the minutes you need at the current UV to reach your daily target, based on your skin type, then reminds you when to seek shade. It is a guide to help you make the most of sunlight, not medical advice.

Does Sunly work with Apple Health?

Yes. With your permission, Sunly writes your time in daylight to Apple Health so it sits alongside your other activity and wellness data. Sunly does not read your other Health data, and you stay in full control of the connection.

Can I check the UV for other places?

Absolutely. Save home, work, or your next holiday spot and check the UV anywhere in the world, which is handy for planning trips and outdoor plans.

Which devices are supported?

Sunly is available for iPhone and Android. On iPhone it requires iOS 17 or later.

ENJOY THE SUN. SKIP THE BURN.

TAN ON A TIMER, NOT A GUESS.

STAY OUT LONGER, STAY COVERED.

HIT YOUR DAILY VITAMIN D.

YOUR SUN DATA, IN HEALTH.

EVERYTHING ELSEUNDER THE SUN.